Timepiece



Dec. 27, 1932. T KOCH' 5R 1,892,514

TINmPULcLEA Filed Feb. 18, 1928 THEoDo/e /focf/ 5f.

lwEn/TFR,

@Zawm Patented Dec. 27, 17932v i 'rniionon KOCH, sn., or,k BUREN,

Application filed rebruary'is, 192s, serial No. esame-land iniswifzeiandmarch ia, i927;

vided a clockwork movement,particularly for watches, characterized in that the head of the balance-cock has two lugs, whereofr l0 one carries, as usual, the small block for the balance spring, while the other serves forreceiving at least one part ofthe devices f mounted ontlie balance-cock. i

Two embodiments of the invention are il' 15 lustrated diagrammatically by `way of eX- ample in the accompanying drawing, wherein Figure 1 is a plany showing one form ofy balance-cock according to the invention, and Figure 2 is a section taken on the line II- II in Figure 1;- y v y Figure 3 is a plan showing the second form of balance-cock. 'v

Like reference characters ydesignate like 25 parts in all the views.

Referring to the drawing,fthe head of a balance-cock 1 has two symmetrically arranged lugs 2, 3 whereof the lug 2 carries, as usual, the small block el for attaching one i 3'@ endof the balance spring, while the :lug 3,

in the constructionshown in Figures 1 and 2, has a shock-absorbing spring 5 secured on l by lmeans of a screw 6. This spring 5 n* serves, in a manner known in itself, for taky f2" ing up axial pressures of the balance arbor' due to shaking or blows. It may bestated that this ur ose is not novel as suoli shockabsorbing springs or equivalent means have been proposed heretofore, but the liereinder o scribed and illustrated arrangement andconstruction of the shock-absorbing spring 5 is novel.` In consequence of this arrangement not only does this spring function better, but` ,y an improved distribution of all the rmembers o mounted on the balance-cock results. `As

shown in the drawing the spring 5 is relativef ly large; it has an arm that is screweddown kon the lug 3 and bears resiliently on an annularportion on the cover stone 7. The latter lies freely` on the balance-000k, n a Cir :ance-cock, at

cular' me 0f regulator plates; Theben..

ing,4 stone lOs-lidably mountedl the.` bal:-

anc.e.c oek isp-rovidedf withia. central perlfora,H

tion 10a for pivotallyy reeeiving .the one; end oftheibalancearbor (not shown). The regulator plate 8 is` attached by means of two screws 11, on the, balance-cock. VTheregun lator 12' is rotatably mountedontlie plateS in knownl manner by ine-ans of a`- lovetail joint. Thev regulator pointer 12. as welll as the-short-tail-piece12'( andthe regulator pinslie in` theaxis: of symmetry oli the bal: right-,angles tothe; lugs of the latter; l

On the regulator` plateA 8; ak setfscrew 13,y is provided whose stein e-Xteiids through ahole; the. spring 5 so that the deflection of: the, latter-,isy limited by rthehead ofthe screw,v and can beadjusted` accordingly. p v p x Obviously, movement, ofV the arbor-inthe direction; of the bearing stone'-v lQ-.Will move theflatter againstfthe abutment. stone 7 which` willI in turny pressi against thespring 5.said sprngfconsequently absorbing the shock'.

ThemodilicationI shownin Figurey 3 is sim.-

vilarin generall to the form shownin Figs.. 1

andl2 but diifersetherefrom in that inv Figure 3,; the indicator.' 12 yhas been placed4 above the lug 3, while the arm ofthespring 5 is` ar*- ranged at. theplace generallyA occupied by the indicator, fi. e. on. the back of the balancecock. In this case, the indicator must,y of

course, be shorter which, however, is of no importance. Onthe other hand, thejarm of the spring 5 may be much longer as there is much more room available on the back of the balance-cock than on the lug 3. Consequently, in this arrangement better and more durableshock-absorbing spring 5 can be used s than in the construction according to Figures l and 2.

pocket and Wristwatches, but also tov timepieces for automobiles and other vehicles and in all clockwork'movements comprisinga rbalance-cock.

I claim 1. In a clockwork movement, the combination of a balance-cock having a head, a bearing member having a central perforation for 5 receiving one end of the arbor, slidably mounted on said head, an abutment member movably mounted on said head in overlying relation to said bearing member, a shock absorbing member movable with respect to said abutment member and bearing against the` latter, and means for adjustably limiting movement of said shock absorbing member.

2. In a clockwork movement, the combination of a balance-cock having a. head, a t. bearing member adapted to receive one end 0f an arbor, mounted on said head, a shock absorbing member for said bearing member, and means for adjustably limiting movement of said shock absorbing member.

3. In a clockwork movement, the combination of a balance-cock having a head, a bearing member adapted to receive one end of an arbor, mounted on said head, an abutment member mounted in overlying relation to said bearing member, ashock absorbing member bearing against said abutment member, and means for adjustably limiting movement of said shock absorbing member.

4. In a clockwork movement, the combination of a. balance-cock having a head, a bearing member for oneend of an arbor, mounted on said head, a cover stone overlying said bearing member, a regulator plate fixed to said head and disposed about said cover stone, a regulator having an indicator retained on the said head by said regulator plate, a shock absorbing spring attached to said head and having a portion adapted to contact said cover stone, said spring having an opening, an adjusting screw slidably extending through said opening and screwed to said plate, said screw having a head adapted to contact the top of said spring forlmiting upward movement thereof.

In testimony whereof I aix my signature.

THEODOR KOCH, SR. 

